Gas-fixture



(No Model.)

M. P. COLEMAN.

GAS FIXTURE.

No. 392,993. Patented Nov. 20 1888.

Users STATES ATENT tries.

GAS-FIXTU RE.

SPECIFICATION forming part of Letters Patent No. 392,993, dated November 20, 1888.

Application filed March 26, 1888.

' Massachusetts, have invented a certain new and useful Improvement in Gas-Fixtures, of which the following is a description sufficiently full, clear, and exact to enable any person :skilled in the art or science to which said invention appertains to make and use the same, reference being had to the accompanying drawings, forming part of this specification, in which Figure l is a side elevation of a twobranch chandelier embodying my improvement, and Fig. 2 an enlarged sectional View showing certain details of construction.

Like letters and figures of reference indicate corresponding parts in the different figures of the drawings.

In supporting the smoke-bells of ordinary gas or lamp fixtures a collet provided with arms or brackets is usually slipped onto the casing of the vertical or main pipe and secured in position thereon by a set-screw. This method is, however, objectionable for the reason that it is liable to soar the casing if fitted closely enough to keep it in proper position, and when not so fitted cannot be readily secured thereto in such a manner that its arms which support the smoke-bells will be in a horizontal position or stand parallel withthe branch pipes beneath them, on which the burners are mounted. The set'screw in the collet is also liable to accidentally work loose and permit this part, of the fixture to fall, thereby sometimes causing much damage.

My invention is designed to obviate these objections; and to that end I make use of means which will be readily understood by all conversant with such matters from the following explanation.

In the drawings, A represents the vertical pipe of the fixture, and B B the branch pipes, on the ends of which burners and shades O are mounted in the usual manner. The casing for the vertical pipe is divided into two sections, D and E, a space being left between them to receive the collet H, which is provided with arms J, carrying smoke-bells K at their outer ends in the ordinary manner. The upper and lower ends of the collet are conical in form,

Serial No. 268,472. (No model) as shown at t, and in use it is placed directly on the pipe A, between the ends ofthe casingsections D E, its lower end being inserted in the upper end of the section D and its upper end in the lower end of the Section E, as best seen in Fig. 2. A sleeve, 70, having a boss, I), is placed on the pipe A above the section E, the lower end of said sleeve being inserted in the upper end of the section E, and above said sleeve there is a union-coupling, M, for connecting the pipe A with the supply-pipe L above the ceiling N, said coupling having an annular shoulder, c, which rests on the boss 6, so that when the coupling is turned to bring the ends of the pipes AL together the casingsections DE will be forced onto the conical ends t of the collet H, thereby centering it and keeping its arms J in a horizontal position without the aid of a set-screw, in a manner that will be readily understood by all conversant with such matters without a more explicit description.

The union-coupling M servesas a nut on the pipe A to force the section E down onto the conical upper end of the collet; but any other suitable nut may be employed for this purpose. The sleeve k may also be dispensed with,if desired. l

The opening in the upper end of the sleeve is is larger than that in its lower end, a flange, f, on the nut M being inserted in its upper end to center the sleeve and render the connection between these parts at this point more perfect.

In the present instance the fixture is represented as provided with two branch pipes B and the collet with two arms J; but it will be understood that one or more arms J may be employed with the collet, as desired; also, that one or morebranch pipes B may be used with the pipe A.

It will be obvious that the invention is equally applicable to lamp and gas fixtures.

Having thus explained my invention,what I claiin is 1. In a device for securing the smoke-bell arms of a lamp or gas fixture to its body or main pipe, the combination of the pipe A, casing-sections D and E, disposed on said pipe, collet H, having the conical ends t and provided with one or more arms, J, said collet being disposed on said pipe between said casingsections, and a nut on said pipe adapted to forcethe casing-sections onto the conical ends of the collet, and thereby secure it in position on the pipe, substantially as set forth.

2. In a device for securing the smoke-bell arms of a lamp or gas fixture to its main body or pipe, the, combination of the pipe A, pr0- vided with one or more branch pipes, B, and the easing-sections D E, the collet H, having the conical ends t and provided with one or more arms, J, said collet being disposed-011 said pipe between said sections, the sleeve 70, provided with the boss b, and a nut on said pipe for forcing said sleeve onto the section E and the sections E D onto the conical ends of the collet, substantially as described.

pipe for forcing said sleeve onto the section E and the sections E D onto the conical ends of the collet, substantially as set forth.

MICHAEL P. COLEMAN. Witnesses:

O. M. SHAW, O. A. SHAW. 

